single phase AC current meter,ac ammeter,meter 1.OEM 2,High quality,reasonable price,hot sale Detailed Product Descriptionsingle phase AC current meter ... ,meter 1.OEM 2,High quality,reasonable price,hot sale single phase AC current meter,ac ammeter,meterThe scope of applicationThe series ... 30A 50A 60A,More than 60A external connect 50mV,60mV or 75mV shunt